#include<iostream>
 
using namespace std;
 
class superclass
{
public:
    superclass()
    {
        cout<<"superclass ctor"<<endl;
    }
    ~superclass()
    {
        cout<<"superclass dtor"<<endl;
    }
};
 
class subclass : public superclass
{
public:
    subclass()
    {
        cout<<"subclass ctor"<<endl;
    }
    ~subclass()
    {
        cout<<"subclass dtor"<<endl;
    }
};
 
int main()
{
    subclass *p=new subclass();
 
    delete p;
 
    return 0;
}
 

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